{"product_id":"landolt-c-8-direction-single-sided-near-vision-card-with-40-cm-16-in-measuring-cord","title":"Landolt C (8 Direction) Single-Sided Near Vision Card with 40 cm (16 in) Measuring Cord","description":"\u003cp\u003eThe \u003cstrong\u003ePrecision Vision 2209 Landolt C Near Vision Card\u003c\/strong\u003e provides standardized logarithmic visual acuity testing at a \u003cstrong\u003e40 cm (16 in) testing distance\u003c\/strong\u003e. The chart uses the \u003cstrong\u003eLandolt C (broken-ring) optotype in eight orientations\u003c\/strong\u003e—up, down, left, right, and the four 45-degree positions—allowing the patient to identify or indicate the direction of the opening rather than recognize letters.\u003c\/p\u003e\n\u003cp\u003eThe chart progresses in \u003cstrong\u003e0.1 log unit increments\u003c\/strong\u003e, from \u003cstrong\u003e8.0M \/ 20\/400 \/ 1.3 logMAR\u003c\/strong\u003e through \u003cstrong\u003e0.20M \/ 20\/10 \/ −0.3 logMAR\u003c\/strong\u003e. Multiple acuity notations are printed directly on the chart, including \u003cstrong\u003eM-unit letter size, logMAR, decimal acuity, 20-foot Snellen equivalent, and 6-meter Snellen equivalent\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAn attached \u003cstrong\u003e40 cm (16 in) measuring cord\u003c\/strong\u003e helps maintain the specified testing distance for consistent near visual acuity assessment. Precision Vision also identifies Landolt C testing as useful when alphabet recognition may be inappropriate or impractical, including multilingual testing environments or patients unfamiliar with Roman letters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"margin:0; padding-left:1.25em;\"\u003e\n\u003cli style=\"margin:0; padding:0;\"\u003e\u003cstrong\u003eLandolt C optotype with 8 directional orientations\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0; padding:0;\"\u003e\u003cstrong\u003eSingle-sided near vision chart\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0; padding:0;\"\u003eStandardized \u003cstrong\u003e40 cm \/ 16 in testing distance\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin:0; padding:0;\"\u003eIncludes attached \u003cstrong\u003e40 cm measuring cord\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin:0; padding:0;\"\u003e\u003cstrong\u003e0.1 log unit progression\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0; padding:0;\"\u003eAcuity range: \u003cstrong\u003e8.0M to 0.20M\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin:0; padding:0;\"\u003eSnellen equivalent range: \u003cstrong\u003e20\/400 to 20\/10\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin:0; padding:0;\"\u003elogMAR range: \u003cstrong\u003e1.3 to −0.3\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin:0; padding:0;\"\u003eDisplays \u003cstrong\u003eM-unit, logMAR, decimal, 20-foot, and 6-meter acuity notations\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin:0; padding:0;\"\u003eHigh-contrast black Landolt C optotypes on a white background\u003c\/li\u003e\n\u003cli style=\"margin:0; padding:0;\"\u003eDirection-based response reduces dependence on letter recognition\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin-top:0;\"\u003eSuitable for standardized clinical, research, screening, and multilingual visual acuity testing\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":47426827780257,"sku":"2209","price":37.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/2209_Finished.jpg?v=1789505910","url":"https:\/\/precision-vision.com\/products\/landolt-c-8-direction-single-sided-near-vision-card-with-40-cm-16-in-measuring-cord","provider":"Precision Vision","version":"1.0","type":"link"}